Primes n such that concatenation of pi(n) and n is prime, with pi being the prime counting function.
3, 59, 83, 179, 283, 353, 431, 709, 1433, 2269, 2381, 3559, 3593, 4153, 5503, 6899
4 seqfan posts
Fri Oct 9 02:38:44 CEST 2009 [seqfan] Re: Edit of A155030
Fri Oct 9 02:23:12 CEST 2009 [seqfan] Re: Edit of A155030
Fri Oct 9 02:14:37 CEST 2009 [seqfan] Re: Edit of A155030
Fri Oct 9 01:56:38 CEST 2009 [seqfan] Edit of A155030
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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